package com.jijidom.order.utils;

import java.util.Random;

/**
 * @ClassName
 * @Description TODO
 * @Author JinTao
 * @Date 2018/9/11 15:46
 * @Version 1.0
 **/
public class KeyUtil {
    /**
     * 生成唯一主键
     * 格式：时间 + 随机数
     */
    public static synchronized String genUniqueKey(){
        Random random = new Random();
        Integer number = random.nextInt(900000) + 100000;
        return  System.currentTimeMillis() + String.valueOf(number);
    }
}
